12854| 35
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鋼板260厚,,鉆孔到深度80時(shí),鉆頭斷了,,怎么取出,? |
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評(píng)分
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點(diǎn)評(píng)
專門的電火花機(jī)器?叫,?普及下,。謝謝。今天分送完了,友情后補(bǔ)哈,!
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點(diǎn)評(píng)
是。友情后補(bǔ)哈,。
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點(diǎn)評(píng)
謝謝,。
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點(diǎn)評(píng)
一開始,,是這樣考慮的,。
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